Here is the email message we'll send...
I wanted to let you know about a new website that is building a comprehensive list of local playgrounds. It's called Playground Mapper.
You can view the playgrounds by visiting: http://www.playgroundmapper.com
You can search for playgrounds and parks near you, and view photos and comments of the playgrounds. They are also looking for playgrounds to add to their list, so if you have time, it would be great for you to post some of your favorite playgrounds.
Playground Mapper is a new web site, so the more playgrounds you can add to their list, the better. And if you like the idea of Playground Mapper, you can tell other parents about it too.
This email was sent on behalf of 'Your Name', from an online form on the web site www.playgroundmapper.com.